In compliance with European Union (EU) legislation for visitors from the EU, Schlumberger requests your permission to place cookies on your computer to both improve your experience and to help us improve our website. To find more about these cookies, see the Schlumberger General Website Privacy Statement.

3D Demultiple Portfolio

With this in mind, we have developed the most comprehensive portfolio of 3D multiple attenuation algorithms in the industry. The different technologies and workflows within the portfolio offer fit-for-purpose solutions that accommodate differing acquisition geometry (wide- or narrow-azimuth), spatial sampling, and structural complexity. Whatever the geological structure, water depth, or acquisition geometry, we have a demultiple approach that will fit your requirements.

The portfolio is composed of a suite of proprietary multiple prediction methods based on both data-driven and model-based techniques.

Wavefield extrapolation multiple modeling (WEMM) provides a complementary approach to 3D SMP methods. WEMM uses a previously produced velocity model and migrated seismic image to compute a multiple model that can then be subtracted from the input data. This means that it is independent of acquisition geometry, and is particularly applicable to wide-azimuth towed-marine surveys.

Extended internal multiple prediction (XIMP) is our industry-leading algorithm used to attenuate interbed multiples. These are most often a challenge on land datasets. The algorithm works with any input geometry, with no a priori information and accurately predicts multiples at true azimuth.

The application of 3D demultiple will significantly improve the quality of multiple attenuation over existing 2D methods. This leads directly to a superior image of your reservoir, and improved confidence in the result of subsequent reservoir characterization steps such as prestack inversion and AVO.